The Loudoun County Board of Supervisors voted Monday to create a 15-square-mile "Goose Creek Historical Preservation District" in the rolling central section of the county.

The Board approved the historic designation on a 5-to-3 vote after agreeing to leave out the land of any resident who had not agreed to the designation.

The roughly 950 acres not included in Monday's action will be considered for inclusion at a public hearing in the spring.

The historic designation does change the zoning in the area of 200 to 300-acre farms and Quaker homes dating from the 1730s, but it does call for setting up an architectural review board that would have to approve changes and construction in the zone. Farm outbuildings would not be subject to the review.

The move to gain hictoric designation for the region was led by a group of area residents who drew up a petition and won the support of about 95 per cent of the owners of land around the village of Lincoln.

The area was described by John Lewis, a leader of the effort, as "unique for the quantity of homes preserved in their original condition." Lewis, who is also regional representative of the Virginia Historic Landmarks Commission, will now seek similar designation of the area by the state commission, according to Mrs. William Evans-Smith, another leader in the local effort.

Another of the district's backers, William Brown, whose daughter is the ninth generation of her family to live in the same house, has said that within areas included in the historic district, "material, building and site would have to be compatible with what is here, but that wouldn't prohibit a modern glass and steel house if it fit in. The designation will help bring people into the area who are interested in preserving the type of atmosphere that now exists."